Kidney Injury Molecule-1 Expression in Pathological T1b Clear Cell Renal Cell Carcinoma: A Putative Biomarker of High Immune-Inflamed Status and Recurrence.

ABSTRACT: Kidney injury molecule-1 (KIM-1) is a potential prognostic marker of advanced-stage clear cell renal cell carcinoma (ccRCC) and is associated with tumor immunogenicity. Little is known about its role in early-stage ccRCC, especially in pathological T1b (pT1b) disease, which shows a higher recurrence rate than pT1a disease. Resected specimens from 112 pT1b ccRCC cases were reviewed and immunohistochemically analyzed for KIM-1 expression. High membranous KIM-1 expression was defined as H score ≥ 140, based on the immunoreactive intensity and area, and cytoplasmic expression in ≥ 10% of cancer cells was considered as high cytoplasmic KIM-1 expression. KIM-1 expression status was compared with clinicopathological variables, including tumor-associated immune cell (TAIC) status. Among the 112 ca

SUBMITTER: Sugai A 

PROVIDER: S-EPMC12288442 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature